[member="Dinosauria_Research7"]
Welcome to the board!
There is no required post length! Do whatever feels comfortable and most fun for you. I would suggest lurking some of the public group threads/etc to get an idea of how dialogue and action works here. Some people post a few paragraphs, some post a novel - as long as you're respecting the other person's content, the length of your response doesn't matter. Quality over quantity and all that. That being said, we're not a one sentence/chat format either so that may take some getting used to if you're coming from Discord or something like that!
Combat system is extremely informal in that...there isn't one. We don't do dice rolls or anything like that. When you're engaged in PvP, you respond as you see fit. Again this is all about working with the person you're writing with - take hits where you should, don't take them if you see a good way out, and chat OOC over private messages.
And lastly, general power level is all over the place. My standard rule of thumb is that if you put in the work, you can do whatever you want (within reason and board rules). We've got NFU's, and Padawan --> Master levels of all alignments running around. Again, reading through some Invasion threads might be a good idea since there's the most combat there. In terms of being OP, I say play on the safe side until you have had a little while to settle in! You'll quickly see what does and doesn't fly!
Any other questions, feel free to shoot them our way!